Car construction.



Wbtuaoow J. M00. COLEMAN.

CAR CONSTRUCTION, APPLICATION rum) JULY 20. 1911.

Patented May 21, 1912.

2 SHEETSSHEBT 1.

J awn whom z- M J. M00. COLEMAN.

CAR CONSTRUCTION.

APPLIOATIOH FILED JULY 211, 1911.

Patented May 21, 1912 2 SHEETS-SHEET 2.

sectional view of the truck bolster.

UNITED STATES rA EN'r OFFICE.

JAMES MoCUTGI-IEON COLEMAN, OF WES TMOUNT, QUEBEC, CANADA.

CAR CONSTRUCTION.

Be it known that 1, lanes McOtrrcnno COLEMAN, a citizen of the United States of America, and resident of 356 Olivier avenue, in the city of Westmount, Province of Quebec, Dominion of Canada, have invented certain new and useful Improvements in Car Constructiori; and I do hereby declare that the following is a full, clear, and exact description of the same.

The invention relates to inn-)rovenients in car construction as described in the present; specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in the novel means employed for tying trucks to the body of the car without disturbing the flexibility of said body in relation to said trucks.

, The objects of the invention are to devise a construction of car, in which the body will not readily leave the trucks in the event of an accident, and thus avoid telescoping and other daidgerous happenings in the event of disaster and consequently saving life and property and generally to provide a thoroughly mechanlcal and flexible joint between the body bolster and the truck bolster.

In the drawings, Figure 1 is a vertical sectional view, showing the joint in the cen- -'ter of the body and truck bolsters. Fig. 2

is a plan view of the same from above. Fig. 3 is a longitudinal mid-sectional view of the body bolster. Fig. t is a longitudinal mid- Fig. 5 is a perspective detail of the king pin. 'l i g. 6'is aperspective detail of a tie piece.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 is the body bolster, which is secured to the underside of the car body as customary, Formed at the joint center with the recess 2 in the upper side 8, being further recessed at 4. around the recess 2, and havipg the upper and lower angular ribs 4 extending outwardly from the wall of said recess 2.

25 is a bearing plate formed integral with or rigidly secured to bolster l and formed with the circular convex surface 5 centrally recessed at 6 around the edge of the center pin hole 7 leading through the bed of said recess and disposed centrally through the plate.

Specification of Letters Patent.

I Application filed July 28, 1911.

To all whom it may concern:

Patented May 21, 1912.

Serial No. 641,075.

circling the convex surface at the outside thereof and serving as a. dust guard.

i) are key slots or notches formed in the upper surface of the plate 25 at the edge of the pin hole 7 and 9* are key slots or notches formed in the inner edge of the rib 4".

It) is the truck bolster arranged as usual in alineincnt with the body bolster l, and having integral, with or rigidly secured thcrctoa bearing plate 26 formed on the upper side thereof with the concaved surface 11 corresporuling to and meeting the convex surface 5 and surrounding a cifinlar boss I). Said boss extends into the recess (1 and is provided with a central pin hole thercthrough corresponding to the pin hole 7. lnn'nediately below the boss 12, the bolster It) is formed with a circular,recess 14, leading into the reduced conver ing rccess 15, from the latter of which leads the pin hole 16 through the bottom 17 of the bolstcr.'

18 are tie pieces each having a vertical flange 19 adapted to extend at one end into a notch 9. and at the other end into a notch 9, and a bulging or bellying shank 20 terminating at: thc lower end in the tail 2t adapted-to bear on the king pin.

22 is a flange whose upper edge extends under the bottom of the boss 12 though not; hearing thereon.

23 is the king pin inserted between the keys l8 and the pin hole 16 and held above the upper side of the body bolster l by the punched ring 2-1, said punchcd ring resting in the recess el, thereby providing easy access to the parts by its removal. It will be thus seen that with the king pin 2 in position the body and the truck bolsters are irreniovably tied together by the keys 18, as the flanges l9 engage the upper surface of the plate 25 while the flanges 22 extend under the plate 26, though not. close enough to said plate to prtulucc a binding or grinding cll'cct. The tails 2] bear on the pin, thus, in the swinging of the truck, the keys will remain in a rigid position, being ensconced in the key slots 9 and 5).

in positioning the parts the keys are first passed through the holes 7 and 13 and the king pin is then dropped into position, thereby forcing the keys outwardly until the flanges It) engage the key slots or notchesd) and 9 and the flanges l2 ngage under the plate 26. In the swinging of the truck the' 8 is a downwardly extending flange enl bodv bolster, hearing plate 25, keys and king pin move together. The convex and corresponding concave surface accommodating the movement while the tail pieces of the keys have a little movement within the recess 15 and Within the hole 13.

It is to be understood that the bearing plates 25 and 26 may be separate elements suitably secured to their respective bolsters, or they may be formed integral with the bolsters. v

Some changes may be made-in the arrangement and construction of the parts without departing from the spirit of the invention so long as such changes are not greater than the scope of the novelty following.

WVhat I claim as my invention is:.

1. In car construction, a joint between the car body and the truck formed y the meeting center bearing parts of bolster members, locked together by expanding tie members engaging upper and under surfaces of said bolster members respectively. p

2. In car construction, a center bearing claims for comprising meeting convex and concave parts, a plurality of flanged t e members inserted centrally therethrough, and a king pin inserted between said tie members, to'

said

. bearing portion centrally recessed and a pinhole through the lower side thereof, said lower side being convexed and centrally re cessed around said pin-hole, a truck, a bolsterrigidly secured to said truck having a center bearing portion with an upper side concaved in dish shape around a central up-' wardly projecting boss and a pin hole through said boss and the lower side of the bolster, a plurality of tie members having flanged heads and flanges toward the lower end thereof, said head flanges engaging said I body bolster and said ,lower flanges'extending under the lower surfaces in'said truck bolster and a pin extendingthrough said pin holes between the said tie members.

'5. In a device of the class described, in

cOmbination, a car body, a-bolster rigidly a central secured to said car body havin bear ng portion recessed central y fromthe upper side thereof and centrally from the under side and a pin-holethroug'h the bed of said recesses, said underside bei-n convexed around said lower recess and tinged around 'said convexed surface, a truck bol-m ster having a central bearin an upper surface correspondingly concaved to-the convexed surface of said body bolster and a corresponding central boss extending into said underside recess in thebody bol ster and a central recess under said boss K leading to a reducedrecess in the lower-part of said truck bolster, said recesses forming-v portion with enlargement-s of the pin hole therethrough, a

punched ring covering-inthe upper recessthrough said punched ring and through the pin holes'in said bolsters and keys rigidly held to said body bolster and having flanged. heads engaging an upper surface .of the body bolster and intermediate flanges extending under the lower surface of the truck bolster and tails engagingsaid pin.

6. In car constructlon, the combination with the body and truck bolsters, of center bearings rigid with said bolsters, a king pin,

and means engaged by said king pin and engaging upper and lower members: for flexibly tying said bolsters together.

7. In car construction,'- the combination with the body and truck bolsters, of center.

bearings rigid with said bolsters, a king pin and means for tying said bolsters. together adapted to'be brought into engagement with -m the body bolster, a ,king pin extending a the upper and lower members by the inser-' tion of said king pin. v

Signed at the-city of Montreal, Province of Quebec, Canada, this fourteenth day of July, 1911.

JAMES McGIITCHEON GOLEMAN.

Witnesses -P. SHEE, Law A. Pronon. 

